How do you graph x+2y=18 using intercepts?

Mar 22, 2017

Answer:

x-intercept is $\left(18 , 0\right)$
y-intercept is $\left(0 , 9\right)$
See below

Explanation:

Plug in 0 for $y$ to find the x-intercept:

$x = 18$

Plug in 0 for $x$ to find the y-intercept:

$2 y = 18$

Solve for y:

$y = 9$

So we have the two points, (18,0) and (0,9). So we can just connect the dots:

graph{x+2y=18 [-16.73, 23.82, -6.9, 13.38]}